Remove page IDs from three WebContentsObserver APIs that don't need it.

content/browser/frame_host/render_frame_host_impl.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_IMPL_H_
 #define CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_IMPL_H_
 
 #include <map>
 #include <vector>
 
@@ skipping 170 matching lines @@
   friend class TestRenderViewHost;
 
   // IPC Message handlers.
   void OnAddMessageToConsole(int32 level,
                              const base::string16& message,
                              int32 line_no,
                              const base::string16& source_id);
   void OnDetach();
   void OnFrameFocused();
   void OnOpenURL(const FrameHostMsg_OpenURL_Params& params);
-  void OnDocumentOnLoadCompleted(int32 page_id);
+  void OnDocumentOnLoadCompleted();
   void OnDidStartProvisionalLoadForFrame(int parent_routing_id,
                                          const GURL& url);
   void OnDidFailProvisionalLoadWithError(
       const FrameHostMsg_DidFailProvisionalLoadWithError_Params& params);
   void OnDidFailLoadWithError(
       const GURL& url,
       int error_code,
       const base::string16& error_description);
   void OnDidRedirectProvisionalLoad(int32 page_id,
                                     const GURL& source_url,
@@ skipping 76 matching lines @@
   base::TimeTicks send_before_unload_start_time_;
 
   base::WeakPtrFactory<RenderFrameHostImpl> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderFrameHostImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_IMPL_H_